Update <project-tools> for new tools schema

Now that tools all look like 

```json
{ "label" : "Tool Label",
  "toolName" : "tool_label",
  "url" : "https://example.com", // HTML view or JS src
  "location" : "drawer", // pane, drawer, sidebar, script, dialog, linked
  "custom" : 
    { "enabled" : true,
      "tagName" : null //string if a web component
    }
}
```

We need to update the things that consume it.